Well, Wyoming has no state income tax, and no corporate tax either. You could buy an acre, set up an LLC and small internet biz and register your cars as company vehicles. Obviously, you would need to show some plausible income from that business and be able to justify having a car, but that's not too difficult. I have a side LLC that sells products on Amazon and that can more or less be run from anywhere. Or, wouldn't it just be easier to pay the emission fee and have your truck running right? lol

The 40 blew extra clean sans smog equipment last Nov. when registering it for the first time. It came from Ft. Morgan and had been completely desmogged and it still is.